五、(2025·盐城市鹿鸣路初级中模拟)任务型阅读。
Do you know some people can “see” the world by using their ears?
People first need to make clicking sounds with their tongues. When the sound waves hit an object，they come back as echoes. 1. This is called echolocation(回声定位). By practicing this，blind people now can do many things，including riding bikes alone or playing basketball! All these would be impossible for them without this skill.
In the past，scientists thought only blind people could learn echolocation. According to a study，after a person loses sight，there are some changes in his brain. 2. Scientists believed this was the key to learning echolocation. But now a new study shows that sighted(看得见的) people can learn it too! In the study，both blind and sighted people were trained for 10 weeks，learning to make clicking sounds and use them to navigate(导航) in the dark. With practice，both groups improved.
3. When scientists studied their brains after the 10-week training. They found the answer. The visual cortex(视觉皮层) became more active when people listened. 4. Scientists guess this part of the brain doesn't just process what people see—it also deals with information from other senses，like hearing，smell and taste.
For blind people，echolocation is more than a skill that makes their lives easier. Many said they felt more confident. 5. Even if you can't see，your brain can learn new skills，using sounds to help you “see” the world!
根据短文内容，选出可以填入空白处的最佳选项。选项中有一项为多余选项。
A. What is the reason behind?
B. This happened to both blind and sighted people!
C. So his brain works differently compared with the past.
D. What’s more，this discovery shows how powerful our brains are.
E. Then people listen to echoes to tell where things are in the dark.
F. So more and more scientists work hard to study why his brain changes.

五、1~5. ECABD